Hart & Cooley® Sidewall Register, 3-Way, Series: 683, 8 x 8 in, 7-7/16 in Duct Width, 7-1/2 in Duct Height, 9-3/4 in Overall Width, 1-5/8 in Overall Depth, 60 to 200 cfm, 0.2 sq-in, 40 deg Deflection, 1/2 in Blade Spacing, Steel, Bright White Enamel, Domestic